GPS clock server (Beidou timing equipment) application pipeline monitoring SCADA system

GPS clock server (Beidou timing equipment) application pipeline monitoring SCADA system
GPS clock server (Beidou timing equipment) application pipeline monitoring SCADA system
1. Overview of the scheme.
　　Urban natural gas companies have numerous station systems (dozens to hundreds) distributed throughout the country If the control and command center in various places cannot obtain timely and accurate information of important stations, it will cause great trouble for the production dispatchers to correctly evaluate and make decisions on the overall operation, and give accurate guidance to all subsidiaries. Instructions bring great difficulties, and it is difficult to accurately assess the future situation and environment. Therefore, building a complete production command and dispatch system will help improve the management and operation of group enterprises.
　　2. System requirements 　　 The
　　real-time monitoring and management system of urban natural gas pipeline network production is a distributed control system with a computer as the core, which completes the monitoring of the pipeline network. It consists of the dispatching control center (to complete the tasks of monitoring, dispatching management and optimizing operation of the stations of the city gas pipeline network and the remote control cut-off valve room) disaster recovery backup control center, gate station area control station (SCS), remote terminal device (RTU), communication system, etc.
　　The monitoring center will be interconnected with the station control system of each process station through the communication system, so as to conduct data collection and monitoring, and realize tasks such as gas transmission scheduling, equipment operation optimization, metering management, and pipeline simulation. The control function of the SCADA system of the monitoring center is divided into three control modes: "central control", "station control", and "local control". The operators of the monitoring center complete the operation monitoring and management of the entire pipeline and the stations through the pipeline pressure, temperature, flow rate, equipment operating status and other information provided by the system.
　　3. System architecture
　　3.1. Station monitoring center
　　Real-time monitoring of station equipment and uploading information to the dispatching system. The station control network must be protected by special information security equipment, and the station system can be redundantly configured according to the situation.
　　3.2. Regional Dispatching Center
　　Regional Dispatching Center is responsible for real-time monitoring and image monitoring and control of stations within its jurisdiction. The SCADA system can remotely control the station system.
　　3.3. Group company and branch-level dispatching center
　　Group company and regional management company system This system has remote monitoring functions and is responsible for the production and operation data and image monitoring of pipelines and station library systems in all jurisdictions. Combine emergency command, geographic information GIS, monitoring and other subsystems to realize production scheduling management.
　　4 System function
　　With the help of SCADA system, the operating parameters of the pipe network equipment collected by the SCS stations in the main urban area are collected to the MCC monitoring interface. Combined with the geographic information of the natural gas pipeline network provided by the GIS system, the information (pressure, temperature, flow, etc.) of each monitoring point of the pipeline network is displayed on the large-screen monitoring screen of the MCC in real time. At the same time, the information is also published through the WEB server for browsing by networked clients.
　　The system provides efficient and scientific management methods for company vehicles. The ultimate goal of the system is to make the management of the bundle car scientific, standardized, refined and efficient, and ultimately reduce costs and improve service levels.
　　5. Summary of the plan
　　The construction of the gas production scheduling system actively responded to the country's vigorous efforts to promote the in-depth integration of informatization and industrialization, take the new industrialization path with Chinese characteristics, and promote the transformation of economic development mode and the development strategy of industrial transformation and upgrading. The entire system combines advanced computer technology, network communication technology, and automatic control technology to improve work efficiency and reduce costs, providing a strong guarantee for the unified scheduling and management of the gas pipeline network.